TM 55-1930-203-10
(f) After engine has been started, close the valve in the crossover line from the air starting line to the tire
inflation line.
(g) Open the valves on both air tanks.
(h) When sufficient air pressure has built up in air tanks, start the remaining engines.
(i) Release lock valve stem in wheel and adjust all tires to operating pressure.
g. Tire and Inflation System. Inspect tires for cuts, breaks, and imbedded objects. Inflate tires to correct pressure
for the existing terrain. Minimum tire pressure is 35 p.s.i. and maximum is 70 p.s.i. Normal operating tire pressure is 50
p.s.i. Refer to paragraph 2-9 for operation of tire inflation control valve.
h. Accessories. Inspect all accessories such as
fuel pumps, generators, regulators, starting motors, bilge pumps,
cargo well pumps, and winch for looseness and damage.
NOTE
At the end of each day's operation or before the LARC is parked for any extended period, inflate tires to 60 p.s.i.
i. Engines. Check that emergency engine shutoffs, located on each engine blower, are in up (or run) position.
j. Leaks. Check for lube oil, grease, hydraulic fluid, fuel oil, and water leaks; if leaks are discovered, report
condition to organizational maintenance.
CAUTION
The bilges will be cleaned periodically to remove all foreign matter. Do not pump
oil or contaminated water overboard inside the three-mile limit.
k. Ramp. Check that ramp, hoist cables, and cylinders are free of any obstructions. Before closing the ramp,
examine the pneumatic seal, between bottom of ramp and end of cargo well deck, for foreign matter such as stones or
sand. Sweep area clean to protect the ramp seal.
WARNING
Close all drain valves prior to going into water.
l. Hull Drain Valves. Check that all hull drain valves are in operational condition and closed.
m. Controls. Check all lever and pedal type controls to see that they operate without excessive looseness or
binding. lmmediately after putting the LARC in motion, steer to the right and then to the left to see that the wheels
respond to the movement of the steering levers. Insure that the rudders and bow wheels move simultaneously to the left
or right when the left steering lever is turned.
n. Horn and Windshield Wiper. Sound horn to insure that it operates properly. Operate the windshield wiper and
observe if the blade travels its full stroke and contracts the glass evenly and firmly.
2-2.
Servicing the Equipment
a. General. Perform the daily preventive maintenance services as
outlined in
paragraph 3-4.
b. Lighting. Clean all light lenses, and inspect the units for looseness or damage. Open and close all light switches
and observe if the lamps respond.
c. Hydraulic Oil Supply Tank. Check oil level in the hydraulic oil supply tank. The sight level gage is located on the
starboard side of the tank. Report low oil level to organizational maintenance.
d. Fuel System. Check that the fuel supply and fuel shutoff valves (fig. 1-3) between the engines and fuel tanks are
open and that the fuel tanks are full.
e. Antifreeze Materials. Refer to
Table 2-1 for proper antifreeze solution.
2-2